Malicious PDF — malware analysis report

Static analysis result for SHA-256 f715767be4b1474b…

MALICIOUS

PDF

41.6 KB Created: 2020-08-31 10:56:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5893bb474d945f708ae5d80db504f965 SHA-1: 280af9b0313a8dac439c986e879a07ba9850b2d9 SHA-256: f715767be4b1474b86ceb8e0164c64eb49c232db789b4dddeb9618ae0ab9f635
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.ru/wix?keyword=no+one+else+natasha+pierre+sheet+mus', is flagged as a 'PDF_MALICIOUS_REDIRECTOR_LINK'. This suggests the document's primary purpose is to lure users into clicking these links, which likely lead to malicious websites for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/wix?keyword=no+one+else+natasha+pierre+sheet+mus
    • https://static.usrfiles.com/ugd/b3bc21_2b31327c14974603b35bf9afc207d02b.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ee74ab9be734382adc4f1d9a70bd5dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_2e0c77853acd42b8b06dd8b4745f19d7.pdf
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/70760410765.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/wajalefupedekakelafa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/andrea_camilleri_libri.pdf
    • https://cdn.shopify.com/s/files/1/0428/3724/6118/files/budowovitu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/peter_pan_james_matthew_barrie_franais.pdf
    • https://cdn.shopify.com/s/files/1/0435/4618/1787/files/facebook_page_shopping_template.pdf
    • https://static.usrfiles.com/ugd/b8c837_56c778c42d384d11aaec11678f32ac8f.pdf
    • https://static.usrfiles.com/ugd/6924eb_696d8c67d72c4a75b6546d773dd0af87.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_7557a08c2e9b44ba9b472b57cbf33803.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059fa.bin
1077532ff36fbc1ee58501d403b1796ae55825b996b074ad4559b1c2427d41f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59FA 5028 bytes
font_01_sfnt_off00006ae4.bin
8571ba0bf6f1edf9f631b0a26b189d003f695f7baf8560e6ce4a9a07b35e750a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE4 14968 bytes

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